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1. If the earth attracts two objects with equal force, can we say that their masses must be equal?
2. If the mass of a body is 9.8 kg on the earth, what would be its mass on the moon?
3. At what place on the earth’s surface is the weight of a body maximum?
4. Why can one jump higher on the surface of the moon than on the earth?
5. Is weight a force?
Answers
AAcceleration due to gravity on the moon is 1/6 times as that on the earth and we know that mass is property of the material it always remains same and weight is measure of gravitational force, hence
mass of object on moon is 60kg and weight =60g/6=10×10=100NNSWER
It is given that the weight of the object on the earth is 120N. That is W(e)=120N. Acceleration due to gravity is 10m/s.
Mass of the object on earth, m(e) is calculated as follows.
We know, W(e)=M(e)×g
Therefore, 120N=M(e)×10. That is, M(e)=120/10=12kg
Thus, the massof the object on earth is 12kg. We know that the mass of the object remains the same through out the universe. Hence, mass of the object on the moon is also 12kg.
We know, weight of the object on the moon =1/6 of the weight of the object on the earth.
Therefore, W(m)=1/6×W(e)
That is, W(m)=1/6×120N=20N
Hence, the weight and mass of the object on the moon are 20N and 12kg respectively.
Answer:
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